import json

def process_corp_token(token: str) -> dict | None:
    try:
        claims = json.loads(token)
    except Exception:
        return None
    return {
        "corp_id": claims.get("corp_id"),
        "corp_user_id": claims.get("user_id"),
        "corp_app": claims.get("app"),
        "corp_role": claims.get("role"),
    }